i*j = 0
i*j = 0
i*j = 0
i*j = 0
i*j = 0
i*j = 0
i*j = 1
i*j = 2
i*j = 3
i*j = 4
i*j = 0
i*j = 2
i*j = 4
i*j = 6
i*j = 8
i*j = 0
i*j = 3
i*j = 6
i*j = 9
i*j = 12
i*j = 0
i*j = 4
i*j = 8
i*j = 12
i*j = 16
i = 5
j = 5